DE69518361D1 - Process for controlling the formation of eddies in boundary layers and other near-wall flow fields - Google Patents
Process for controlling the formation of eddies in boundary layers and other near-wall flow fieldsInfo
- Publication number
- DE69518361D1 DE69518361D1 DE69518361T DE69518361T DE69518361D1 DE 69518361 D1 DE69518361 D1 DE 69518361D1 DE 69518361 T DE69518361 T DE 69518361T DE 69518361 T DE69518361 T DE 69518361T DE 69518361 D1 DE69518361 D1 DE 69518361D1
- Authority
- DE
- Germany
- Prior art keywords
- eddies
- formation
- controlling
- wall flow
- boundary layers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/10—Influencing flow of fluids around bodies of solid material
- F15D1/12—Influencing flow of fluids around bodies of solid material by influencing the boundary layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C21/00—Influencing air flow over aircraft surfaces by affecting boundary layer flow
- B64C21/10—Influencing air flow over aircraft surfaces by affecting boundary layer flow using other surface properties, e.g. roughness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C2230/00—Boundary layer controls
- B64C2230/02—Boundary layer controls by using acoustic waves generated by transducers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/10—Drag reduction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0391—Affecting flow by the addition of material or energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
- Y10T137/218—Means to regulate or vary operation of device
- Y10T137/2191—By non-fluid energy field affecting input [e.g., transducer]
- Y10T137/2196—Acoustical or thermal energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/206—Flow affected by fluid contact, energy field or coanda effect [e.g., pure fluid device or system]
- Y10T137/2224—Structure of body of device
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Cosmetics (AREA)
- Advancing Webs (AREA)
- Air-Flow Control Members (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25313494A | 1994-06-02 | 1994-06-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69518361D1 true DE69518361D1 (en) | 2000-09-21 |
DE69518361T2 DE69518361T2 (en) | 2001-04-12 |
Family
ID=22959015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69518361T Expired - Fee Related DE69518361T2 (en) | 1994-06-02 | 1995-06-01 | Process for controlling the formation of eddies in boundary layers and other near-wall flow fields |
Country Status (10)
Country | Link |
---|---|
US (1) | US5595205A (en) |
EP (1) | EP0686777B1 (en) |
JP (1) | JPH08270616A (en) |
KR (1) | KR960001515A (en) |
CN (1) | CN1083948C (en) |
CA (1) | CA2150628A1 (en) |
DE (1) | DE69518361T2 (en) |
IL (1) | IL113956A (en) |
RU (1) | RU2146779C1 (en) |
UA (1) | UA39109C2 (en) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2150628A1 (en) * | 1994-06-02 | 1995-12-03 | Lawrence Sirovich | Method of and apparatus for controlling turbulence in boundary layer and other wall-bounded fluid flow fields |
CA2169230A1 (en) * | 1995-02-13 | 1996-08-14 | Lawrence Sirovich | Method of and apparatus for controlling turbulence in boundary layer and other wall-bounded fluid flow fields |
US5833389A (en) * | 1996-12-09 | 1998-11-10 | Orlev Scientific Computing Ltd. | Apparatus for controlling turbulence in boundary layer and other wall-bounded fluid flow fields |
US5983944A (en) * | 1998-03-20 | 1999-11-16 | Niv; Shaul E. | Apparatus for active fluid control |
US6435214B2 (en) | 1998-12-31 | 2002-08-20 | Cortana Corporation | Apparatus for reducing dissipation rate of fluid ejected into boundary layer |
US6138704A (en) * | 1998-12-31 | 2000-10-31 | Cortana Corporation | Method for reducing dissipation rate of fluid ejected into boundary layer |
US20030145980A1 (en) * | 2002-02-04 | 2003-08-07 | Sinha Sumon Kumar | System and method for using a flexible composite surface for pressure-drop free heat transfer enhancement and flow drag reduction |
US6615857B1 (en) | 2002-08-21 | 2003-09-09 | Combustion Research And Flow Technology, Inc. | Modular flow control actuator |
US20060196638A1 (en) * | 2004-07-07 | 2006-09-07 | Georgia Tech Research Corporation | System and method for thermal management using distributed synthetic jet actuators |
CN1733358B (en) * | 2005-02-23 | 2012-10-03 | 朱瑞林 | Technological process intensification technology and apparatus thereof |
US20070023169A1 (en) * | 2005-07-29 | 2007-02-01 | Innovative Fluidics, Inc. | Synthetic jet ejector for augmentation of pumped liquid loop cooling and enhancement of pool and flow boiling |
GB0519871D0 (en) * | 2005-09-30 | 2005-11-09 | Secr Defence | Immunogenic agents |
US7932535B2 (en) * | 2005-11-02 | 2011-04-26 | Nuventix, Inc. | Synthetic jet cooling system for LED module |
US7607470B2 (en) * | 2005-11-14 | 2009-10-27 | Nuventix, Inc. | Synthetic jet heat pipe thermal management system |
JP5013828B2 (en) * | 2005-11-28 | 2012-08-29 | 信子 若山 | Apparatus for reducing wall friction resistance of gas flow, method of use thereof, and method of reducing wall friction resistance of gas flow |
US8030886B2 (en) | 2005-12-21 | 2011-10-04 | Nuventix, Inc. | Thermal management of batteries using synthetic jets |
ITMI20071271A1 (en) * | 2007-06-25 | 2008-12-26 | Milano Politecnico | METHOD TO REDUCE FRIENDLY FRICTION BETWEEN A FLUID AND AN OBJECT |
US8128399B1 (en) * | 2008-02-22 | 2012-03-06 | Great Southern Flameless, Llc | Method and apparatus for controlling gas flow patterns inside a heater chamber and equalizing radiant heat flux to a double fired coil |
US7665797B1 (en) | 2008-06-26 | 2010-02-23 | Jon Andrew Brosseau | Braced fairing for drag and vibration reduction of round tubing |
US8247062B2 (en) * | 2009-05-12 | 2012-08-21 | Siemens Energy, Inc. | Methodology and tooling arrangements for increasing interlaminar shear strength in a ceramic matrix composite structure |
US8460779B2 (en) | 2011-03-30 | 2013-06-11 | General Electric Company | Microstructures for reducing noise of a fluid dynamic structure |
WO2013066690A1 (en) * | 2011-11-02 | 2013-05-10 | Murtech, Inc. | Systems and methods for performance improvement of aerodynamic and hydrodynamic surfaces |
CN103711753B (en) * | 2013-12-31 | 2015-10-07 | 中国科学院工程热物理研究所 | A kind of vortex generator structure suppressing Shock Wave boundary layer to be separated |
US9593670B2 (en) | 2014-04-30 | 2017-03-14 | General Electric Company | System and methods for reducing wind turbine noise |
EP3195304A4 (en) * | 2014-07-28 | 2018-05-02 | The Regents of The University of Colorado, A Body Corporate | Phononic materials used to control flow behavior |
DE102015107626B4 (en) * | 2015-05-15 | 2019-11-07 | Airbus Defence and Space GmbH | Flow control device, fluid dynamic profile body and flow control method with sound wave generation |
GB2556110B (en) * | 2016-11-21 | 2020-04-01 | Dyson Technology Ltd | Compressor blade surface patterning |
CN107957081B (en) * | 2017-10-18 | 2020-02-07 | 北京航空航天大学 | Boundary layer combustion-based resistance reduction method for internal flow channel of scramjet engine |
CN108443274B (en) * | 2018-02-09 | 2019-10-11 | 常州大学 | A kind of narrow formula channel of passive type enhancing fluid turbulent effect |
WO2020041509A1 (en) | 2018-08-24 | 2020-02-27 | Quest Engines, LLC | Controlled turbulence system |
RU195692U1 (en) * | 2019-10-14 | 2020-02-04 | Игорь Сергеевич Ковалев | Device for reducing hydraulic losses in the pipeline |
CN112985755B (en) * | 2021-05-20 | 2021-07-30 | 中国空气动力研究与发展中心高速空气动力研究所 | Boundary layer similar parameter simulation method for accurately predicting cavity flow acoustic load |
CN113899657B (en) * | 2021-12-06 | 2022-02-18 | 中国空气动力研究与发展中心高速空气动力研究所 | Compressible Reynolds stress measurement method based on composite schlieren technology |
US20240043112A1 (en) * | 2022-04-19 | 2024-02-08 | The Texas A&M University System | Systems and methods for producing traveling waves along surfaces exposed to supersonic fluid flows |
CN118090124B (en) * | 2024-04-24 | 2024-07-09 | 中国航空工业集团公司沈阳空气动力研究所 | Wall surface step resistance evaluation test device and simulation method |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB729880A (en) * | 1952-08-19 | 1955-05-11 | Miag Muehlenbau & Ind Gmbh | Pneumatic conveyor pipe line |
SE445326B (en) * | 1983-04-05 | 1986-06-16 | Malmstroem Anders E H | SET AND DEVICE FOR THE PREVENTION OF WALL TURNS |
DE3528135A1 (en) * | 1985-08-06 | 1987-04-02 | Messerschmitt Boelkow Blohm | DEVICE FOR REDUCING FRICTION RESISTANCE |
DE3534268A1 (en) * | 1985-09-26 | 1987-04-02 | Deutsche Forsch Luft Raumfahrt | Surface designed to avoid flow separation on a body around which a fluid flows |
US4932610A (en) * | 1986-03-11 | 1990-06-12 | The United States Of America As Represented By The United States National Aeronautics And Space Administration | Active control of boundary layer transition and turbulence |
DE3609541A1 (en) * | 1986-03-21 | 1987-09-24 | Deutsche Forsch Luft Raumfahrt | Reduced flow resistance by a surface, having reduced wall shearing stress, of a body over which a fluid flows in a turbulent manner |
GB8900274D0 (en) * | 1989-01-06 | 1989-03-08 | Schram Cornelius J | Controlling particulate material |
US5114099A (en) * | 1990-06-04 | 1992-05-19 | W. L. Chow | Surface for low drag in turbulent flow |
US5040560A (en) * | 1990-12-05 | 1991-08-20 | Ari Glezer | Method and apparatus for controlled modification of fluid flow |
US5263793A (en) * | 1991-11-19 | 1993-11-23 | Ormat Industries, Ltd. | Method of and apparatus for controlling turbulence in a wall-bounded fluid flow field |
DE9316009U1 (en) * | 1993-10-20 | 1994-01-13 | Moser, Josef, 85435 Erding | Surface of a fluid-flowed body |
CA2150628A1 (en) * | 1994-06-02 | 1995-12-03 | Lawrence Sirovich | Method of and apparatus for controlling turbulence in boundary layer and other wall-bounded fluid flow fields |
-
1995
- 1995-05-31 CA CA 2150628 patent/CA2150628A1/en not_active Abandoned
- 1995-06-01 IL IL11395695A patent/IL113956A/en not_active IP Right Cessation
- 1995-06-01 EP EP19950303738 patent/EP0686777B1/en not_active Expired - Lifetime
- 1995-06-01 DE DE69518361T patent/DE69518361T2/en not_active Expired - Fee Related
- 1995-06-01 CN CN95108523A patent/CN1083948C/en not_active Expired - Fee Related
- 1995-06-01 UA UA95062618A patent/UA39109C2/en unknown
- 1995-06-02 JP JP13701095A patent/JPH08270616A/en active Pending
- 1995-06-02 RU RU95108879A patent/RU2146779C1/en not_active IP Right Cessation
- 1995-06-02 KR KR1019950014656A patent/KR960001515A/en active IP Right Grant
-
1996
- 1996-01-16 US US08/586,423 patent/US5595205A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
IL113956A0 (en) | 1995-10-31 |
DE69518361T2 (en) | 2001-04-12 |
UA39109C2 (en) | 2001-06-15 |
JPH08270616A (en) | 1996-10-15 |
RU95108879A (en) | 1997-04-10 |
KR960001515A (en) | 1996-01-25 |
CA2150628A1 (en) | 1995-12-03 |
CN1083948C (en) | 2002-05-01 |
EP0686777A1 (en) | 1995-12-13 |
RU2146779C1 (en) | 2000-03-20 |
CN1128866A (en) | 1996-08-14 |
IL113956A (en) | 1999-06-20 |
EP0686777B1 (en) | 2000-08-16 |
US5595205A (en) | 1997-01-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |